Double Flanged Butterfly Valve(DI/Al-bronze/EPDM)

Description

Double Flanged Butterfly Valve – Technical Datasheet

Model: D341X-16C-DIAB
Design Standard: API 609 · EN 593 · MSS SP-67
Configuration: Ductile Iron Body · C95400 Disc · SS416 Stem · EPDM Seat
Face-to-Face: EN 558 Series 13/14 (Selectable)

1. Product Overview

1. Material Specifications

III. Face-to-Face Dimensions (mm)

1. Performance Data

1. Material Advantages
2. C95400 Disc

• Saltwater corrosion rate: 0.025 mm/yr (ASTM G44)
• 3× better cavitation resistance vs. 316SS
• NACE MR0175 compliant for sour service (<50 ppm H₂S)

2. SS416 Stem

• Wear-resistant machined surface (Ra ≤0.8μm)
• Double O-ring seals (Viton®) + grease reservoir

3. EPDM Seat

• 35% compression recovery rate (ASTM D395)
• Withstands glycol mixtures up to 50%

1. Design Features

• Disc Assembly: Monolithic C95400 casting with integral hubs
• Stem Protection: Anti-blowout design + dual bearing support
• Seat System:
• Bi-directional sealing with dual-lip EPDM
• SS304 carrier with vulcanized bonding (≥5 MPa)
• Fire-Safe Option: Secondary metal seal (SS410 + Flexible Graphite)

VII. Series 13 vs. Series 14 Selection Guide

VIII. Certifications & Compliance

1. Applications

Engineering Notes:

1. Series 13 Limitation: Not recommended for >120°C service or DN≥500 valves
2. Galvanic Protection: Use dielectric kits when connecting to carbon steel piping
3. Disc Maintenance: Field-polish with 400-grit max to preserve corrosion resistance
4. Seat Replacement: Requires valve removal – Series 14 allows in-line servicing

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.